Radon enters through cold joints, cracks, drains and holes in your floor and walls. Radon is a radioactive gas that forms naturally when uranium, thorium, or radium, which are radioactive metals, break down in rocks, soil and groundwater.
There are 9 types of radon mitigation systems which one can use to reduce radon levels in their home. They are sub-slab suction, drain-tile suction, sump-hole suction, block-wall suction, submembrane suction, active crawlspace depressurization, room pressurization, heat recovery ventilation, and passive sub-slab suction.
Radon is a naturally occurring radioactive gas which may be found in high concentrations in indoor environments, such as homes and workplaces. Radon is one of the leading causes of lung cancer. Radon is estimated to cause between 3% to 14% of all lung cancers in a country, depending on the national average radon level and smoking prevalence.